find the sadi term 9,13,17.......(a12)
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Given : 9,13,17.......
To Find : 12 th term of AP
Solution:
9,13,17.......
a = 9
d = 13 - 9 = 4
a = first term
d = common difference
aₙ = nth term of AP
aₙ = a + ( n- 1) d
a₁₂ = 12th term of AP
=> a₁₂ = a + (12 - 1) d
=> a₁₂ = 9 + 11(4)
=> a₁₂ = 9 + 44
=> a₁₂ = 53
12th Term of AP = 53
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